What Is TypeScript?
TypeScript is a programming language developed by Microsoft and released as open source in 2012; its lead architect is Anders Hejlsberg. It is a superset of JavaScript: it keeps the whole JavaScript language and adds optional type annotations. A type says what a value should be, such as a number, a piece of text or an object with certain fields, so a slip like passing text where a number is expected is caught early.
Browsers don't run TypeScript directly. The TypeScript compiler checks the types and then produces plain JavaScript with the annotations removed, so the result runs in any browser or on Node.js. While we write code, the same checks power the editor: it suggests the fields an object has, flags mistakes as we type and lets us rename things safely across a whole project.
TypeScript is free under the Apache 2.0 license and works with the tools we use, including React, Next.js, Vue.js, Astro and Vite. TypeScript 7, released in July 2026, brought a new native compiler that checks large projects several times faster than before. Types also act as living documentation: whoever opens the code later can see at a glance what each part expects.
Where We Use TypeScript
We choose TypeScript when a project carries a lot of logic or is expected to grow. In practice that means:
Web Apps and Dashboards
Client portals, booking systems and admin panels hold a lot of data and rules. Types make sure every screen handles that data the same way, and that a change in one place doesn't quietly break another.
Data from APIs and Forms
We describe the shape of the data a server or a form sends and check it on arrival, so missing fields or wrong formats show up during development rather than in front of your customers.
Shared Code Front and Back
When the back end runs on Node.js, the browser and the server share the same type definitions, so both sides always agree on what an order, a booking or a message looks like.
Components with Clear Contracts
In React and Vue.js components, types state which options each component accepts. Your design system stays consistent, and the editor warns us when a component is used the wrong way.
Why TypeScript?
Fewer Bugs Reach Your Visitors
Many slips, such as a misspelt field name or a missing value, are caught by the compiler before the code is published, not reported by a customer later.
Safer Changes as You Grow
When we add a feature or change how something works, TypeScript points to every place in the project that needs updating, so growth doesn't break what already works.
Clear Code for Whoever Comes Next
Types explain what each part of the code expects. Whether your own developers, another team or we maintain the site later, they get up to speed faster and with fewer surprises.
How We Work on Your Project
At the start we map the project's main data, such as what a product, a booking or a user looks like, and write it down as types. Then we build features on top of them with strict checking turned on, and the compiler and the editor review every step as we go.
Before handover the project must build without a single type error, and automated checks run on every change. You receive the full TypeScript source along with the compiled JavaScript, so the code is yours and ready for the next developer.
